Locking device for bicycles



(No Model.)

J. C. BARR. LOCKING DEVICE EUR BICYGLES.

Patented May 24,1898.

In @2f/Zw? /ff ....:Ezilllm W MM( NITED STATES PATENT Prien.

LOC-KING DEVICE FOR BICYCLES.

SPECIFICATION-forming part of Letters Patent No. 604,452, dated May 24,1898.

Application tiled June 8, 1896. Serial No. 594,673. (No model.)

To all whom t may concern..-

' Be it known that I, JOHN CLARE, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented certain Improvements in Locking Devices for Bicycles, of whichthe following is a specification.

My invention relates to bicycle-locks, and has for its object toprovidea lock which shall be easy of application to ordinary come pletedbicycles and which shall not disfigure the same.

The object is further to provide various improvements and adjustments,hereinafter more particularly set out. It is illustrated in theaccompanying drawings, wherein- Figure l is a vertical section throughmy device. Fig. 2 is a vertical section through the opposite direction;Figs. 3 and 4, details of the key and key-controlling mechanism; Fig. 5,a detail of the inner drum.

Like parts are indicated by the same letter in all the iigures.

A is the forked stem, and B the head, of the bicycle, which is supportedby ball-bearing C on the stennthe stem rotating within the head.

D is the coupling, which connects the head and the tube E of the frame.

F is the outer cylinder or case of my locking device, havin g the lowerflange G, whereby it is secured to,the stem, and the annulus H, with thecover J to form the key-chamber. Pivoted in the lower end of the case bymeans of the pin K is the'partgear L, which may extend into slots in theside of the/case. It has the pitman M, which is held secured to the topof the case N by the spring O, and has the slot P, in which plays thepin R of the bolt S, pivoted at T. This bolt is secured to the top bythe spring U.

V is the inner case or drum. On the cover J are the key-guides W W forthe key W', which enters a slot W2 in the rim H.

W3 is a key-lock arc-shaped to slide on the inside of the rim andprovided with a slot W4 to receive the pin W5 and a thumb-piece W6,which projects through the siot W7 in the rim and associated with aspring W8.

W9 is a notch on the key to receive the end of the key-lock W3.

V isan arm on the bottom of the drum V,

and it projects through a` slot V2 in the rim H.

X is a drum-lock, shaped as shown, adapted to slide along one of theguides IV, held in position by the pin'X and under pressure from thespring X2. Its point X3 is adapted to engage either side of the arm V.The drum is slotted at Y, the forked stem at Y', and the head at Y2, theslots being opposite the openings in the tube E and coupling D when theparts are in their normal positions to be locked.

I do not of course wish to be limited to the specific form orconstruction shown or to the exact details or precise features, and,indeed, some of the elements may be dispensed with without abandoningthe others, and all or part of my invention may thus be utilized invarious devices differing somewhat one from the other.

The cylinder V is provided with the slots V21 and V3, so that it mayturn,Y said slots being associated with the pins T and K, respectively.The wheel is virtuallya cam, being cut olf or mutilated on one side, asindicated in Fig. l. If not so made, the slot in the link W should besuch as to permit the wheel to rotate therethrough a certain properdistance.

The use and operation of my invention are as follows: When the parts arein the position shown in Fig. 1, the forked stem is locked, so as tobring the wheels into dierent planes and thus prevent the use of thebicycle. Bicycles as ordinarily constructed have everything that isshown in my drawings, except the contents of the cylinderF and exceptthe slots in the head and stem. The slots therefore in the head and'stemcan be made in the bicycle, and it is only necessary to have a lock ofthe proper diameter to be received.

. It is inserted and is preferably secured to the stem by screws, asindicated, 0r in any desired manner. The only projecting portion of thelock is that which is seen below the stem and which assumes anornamental form. To unlock the bicycle, the key is inserted intoposition, Ias shown in Fig. 4, its teeth engaging the cogs of the pinionL, turning it, drawing down the pitman M, and bringing the bolt into theposition shown in dotted lines, whereupon the parts are free to rotateone upon the IOO other. The parts having been turned into position wherethe slots Y and Y2 do not register, the key may be Withdrawn, and theslot P will permit this without interfering with the parts. When now theparts are turned so as to be ready for locking, the bolt will springinto position. When the key is withdrawn, the key-lock W3 slips into theposition shown in Fig. 3, so as to close the keyopening. It is restoredto the position of Fig. 4 to admit the introduction of the key bypushing on the thumb-piece W6. When the key is inserted, it is locked inposition by the engagement of the end of the key-lock with the notch W9.Thus when the key is in position the bicycle is left permanentlyv in anunlocked condition. To arrange it so that the key may be removed and thebicycle still be left unlocked, l have provided the interior drum, whichmay be rotated by means of the handle V and may be locked in eitherposition, depending upon its relation to the point X3. When it is leftas shown in Fig. 3, the device is left unlocked and the drum guards thebolt-slots, and the bolt-slots can only be freed by forcing in the key,thus freeing the arm V. 1f it then be moved about the opposite side ofthe point X3, the parts may be released, whereupon the drum will belocked in position, so as to uncover the slot.

I claiml. The combination of a bicycle head and stem, each provided withan aperture with a bolt-controlling device within such stem and its boltin proper relation to said aperture, a cylindrical shield to controlsuch apertures, a lock for such shield and means whereby such lock iscontrolled by the keys so as always to free the shield when the key isintroduced.

2. The combination of a bicycle head and stem, each provided with anaperture with a bolt-controlling device within such stem, and its boltin proper relation to said aperture, a cylindrical shield to controlsuch apertures, a lock'for such shield and means whereby such lock iscontrolled by the key so as always to free the shield Whenthe key isintroduced, and a frame portion outside the apertures in the head andstem to conceal them and the bolt and prevent access thereto.

3. In a bicycle-lock, the combination of the head and stem with abolt-controlling device within the stem and adapted to lock the head andstem together, apertures in the stem adapted to receive said bolt, atransverse keychamber below the stem, a reciprocating key adapted tomove therethrough and connecting means whereby the reciprocation of saidkey operates the bolt.

4. In a bicycle-lock the combination of a locking device inserted in thestem with a key-chamber vbelow the stem, and a springlock to lock thekey in and to close the keyaperture when the key is removed.

5. In a bicycle-lock, the combination of a slotted casing containingmechanism to be received in the stem with a cylindrical shield for theslot in said casing, a lock to secure the shield in its operativeposition and a key to control said lock.

6. A lock for bicycles, comprising a pivoted bolt, bolt-receivingapertures in the stem and head opposite a frame-tube of the bicycle, acontrolling device for said bolt concealed Within the stem of thebicycle, a connectingrod pivotally connected with said controllingdevice and provided with a slot, a projecting part on said bolt engagingsaid slot, a keychamber near said controlling device, said controllingdevice projecting into said keychamber so as to be engaged by the key.

7. A bicycle lock, comprising a pivoted locking-bolt within the stem andadapted to pass into an aperture in the stein and head and lock themtogether, a spring-actuated arm within said stem and forming part ofsaid bolt, a toothed plate pivotally connected with said arm, akey-chamber into which said toothed plate projects, the parts sopositioned that when the key is inserted in said keychamber it engagessaid toothed plate and actuates the bolt.

8. A bicycle-lock comprising a cylindrical case or frame adapted to bereceived in the lower part of the stem, a key-chamber at the lower partof such stem, a locking-boltwithin said stem and adapted to pass throughan aperture in the stem and head and lock them together, an actuatingdevice for said bolt projecting into said key-chamber, said boltnormally in a locked position, the Vparts so constructed that when thekey is inserted in said key-chamber, the bolt is held in an unlockedposition and a connecting device for said key contained within saidcase,and adapted to engage said key and hold it in the lock.

JOHN C. BARR.

Witnesses:

ORLo W. RICHARDSON, DONALD M. CARTER.

IOO

